%0 Journal Article %A Alekseenko, Sergey V. %A Shtork, Sergei I. %A Okulov, V. L. %A Kuibin, P. A. %D 2010 %I Begell House %K precession, gas-liquid flow, twisted flow, axisymmetric vortex %N 4 %P 465-478 %R 10.1615/HeatTransRes.v41.i4.80 %T Vortex Precession in a Gas-Liquid Flow %U https://www.dl.begellhouse.com/journals/46784ef93dddff27,58325e9c2ba76f15,7d2ac8450b7ae3df.html %V 41 %X The work is devoted to experimental investigation of the influence of a gas phase on the self-oscillating regime with the vortex core precession occurring in a twisted flow in the case of a helical type of the decomposition of an axisymmetric vortex. Investigations of the frequency of vortex precession and of the full pressure drop over the test section of a vortex chamber depending on the liquid flow rate and gas content were carried out. The relations obtained reveal a number of interesting effects that reflect the specific features in the behavior of precessing vortices with a gas core. These investigations are important, for example, for controlling resonance oscillations occurring in hydroturbines. %8 2010-08-16